Adjustable leg



April 4, 1967 w. ZELONY ADJUSTABLE LEG Filed June '7 1965 2 l l l l l/ 27 i I 5 IG'Z M a 1% 1 4 2vy m s w mm l l F V/ Ir r /&T A Ma Q F s-l INVENTOR WALTER Z ONY ATT RNEY United States Patent 3,312,440 ADJUSTABLE LEG Walter Zelony, 6670 Berwyn, Dearborn Heights, Mich. 48127 Filed June 7, 1965, Ser. No. 461,798

2 Claims. (Cl. 248188.8)

This invention relates to adjustable legs generally, and more particularly to a type of such leg adapted for use on snacks bars, vanity tables and other service and utility counters.

Custom builders and home improvement firms are regularly installing, in kitchens and bath rooms, counters of non-uniform height to meet individual requirements and specifications. The cost of these installations is appreciably increased because the building trades have no available source of legs which can be readily adjusted to provide the exact height required.

Suppliers presently manufacture and stock only the most popular size legs of the height used for standard kitchen or cocktail tables. Since these legs have only a small leveling adjustment in the toe cap, they cannot be conveniently adapted for use on custom built vanities, bars, and other similar structures. Consequently, legs of the exact length required must be specially constructed for all installations which deviate from the presently recognized standard heights.

Cognizant of this fact, the applicant has, as the primary object of his invention, the provision of an adjustable leg which can be readily adapted for uses ranging from substandard tables 20 inches in height, to snack bars and counters 40 inches in height.

Another object of the invention is to provide an adjustable leg of the type previously described, which is extremely strong, and very easy to adjust and install.

A further object of the invention is the provision of a leg of the type previously described which is simple in construction, and relatively inexpensive to produce.

Other features and advantages of the invention will become apparent after thorough consideration of a detailed description of the same composed with reference to the drawings constituting a part of this application, and in which:

FIGURE 1 is an elevation view showing the applicants adjustable leg and mounting flange attached to a flat surface.

FIGURE 2 is a section view taken substantially on plane 2-2 in FIGURE 1 showing the transverse pin in the leg.

FIGURE 3 is a section view taken substantially on plane 33 in FIGURE 2 showing the characteristic shape of the mounting flange.

FIGURE 4 is an elevation view of the sleeve insert removed from the tubular casing showing the spiral slots therein.

FIGURE 5 is a plan view taken substantially on plane 55 in FIGURE 4 showing the diametrally disposed transverse slots in the sleeve insert.

For a more detailed description of the invention herein disclosed, reference is made to the drawings in which numeral designates a tubular casing inwardly turned on the lower end to form a retainer rim 12. An internally threaded section 13 is provided on the upper end of the tubular casing 10. A sleeve insert 14, seated on 3,312,440 Patented Apr. 4, 1967 ice the inwardly turned retainer .rim 12 of the tubular casing 10, has therein two diametrally disposed spiral slots 16.

A series of transversely aligned longitudinally spaced bayonet slots 18 in the sleeve insert 14, are placed in communication with the spiral slots 16. A tapered leg 20 is slida-bly fitted into the sleeve insert 14 and extends from the lower end of the tubular casing 10. A toe cap 22, applied to the end of the tapered leg 20 is provided with a threadably adjustable leveling tip 24.

A diametral pin 26 in the tapered leg 20, adjacent the upper end thereof, is seated in a pair of the transversely aligned openings 18 in the sleeve insert 14. A mounting flange 27, has thereon a pair of externally threaded dependent plugs 28 and 30 for selectively engaging the upper end 31 of sleeve insert 14 and the internally threaded section 13 on the tubular casing 10. The mounting flange 26 is attached to the lower side of a fiat surface 32 by screws 34.

This completes a description of the structural details of the invention herein disclosed; however, to more fully comprehend and appreciate the subject matter presented, a discussion is hereinafter directed to the manner in which the adjustable leg is used to accomplish its intended function, and achieve the objectives previously herein set forth.

In use, the required number of mounting flanges 27 are first attached to a table or counter top 32, as shown in FIGURES 1 and 2. The legs are next adjusted to the desired length by grasping the tubular casing 10 in one hand and the tapered leg 20 in the other hand, and exerting a slight pulling force on each of the components. The diametral pin 26 is thereby moved from the top of the transversely aligned bayonet slots 18 in the sleeve insert 14.

The application of a slight twist on the tapered leg 20, will then move the diametral pin 26 into the spiral slots 16 of the sleeve 14. The diametral pin 26 can then be moved freely up and down the spiral slots 16 to provide the desired over-all length. A slight counter twist, coupled with a pushing force applied to the tapered leg 20, will then move the diametral pin 26 into the tops of the transversely aligned bayonet slots 18 in the sleeve insert 14.

The individual adjustable legs may then be attached to the flanged supports by turning the tubular casing 10 so as to engage the internal threaded section 13 on either of the threaded plugs 28 and 30. If the legs are to be disposed at right angles to the flat surface 32, the threaded plug 30 on the mounting flange 27 is employed. When it is desired to have the legs flare outwardly from the flat surface 32, the angularly disposed threaded plug 28 on the mounting flange 27 is used.

Based upon the foregoing discussion, the applicant is of the opinion that his invention has fulfilled a long-felt need in the field of adjustable legs, and that he has accordingly made a valuable contribution to the related art. However, while the inven-tionwas described with reference to the structural. details of a single embodiment, it will be appreciated by those familiar with the art, that the principles involved are susceptible of numerous other practical adaptations.

I claim:

1. An adjustable leg comprising a tubular casing, a sleeve insert in the tubular casing having therein two longitudinal spiral slots and pairs of diametrally opposed longitudinally spaced bayonet slots communicating With the longitudinal slots, an elongated leg having one end thereof slidably located in the sleeve, a pin on the elongated leg slidably located in the longitudinal spiral slots, selectively engageable in a pair of the opposed bayonet slots and means for attaching the casing to a fixed support.

2.,The adjustable leg of claim 1 in Which the means for attaching the casing to a fixed support includes a threaded section in the tubular casing adapted to receive and threadably engage the attaching element on the fixed support so that the upper end of the sleeve insert seats on such attaching element.

Erickson 248-1882 Benson 28758 Myers 28758 Rice 248-163 Morin 312256 Noah 28758 CLAUDE A. LE ROY, Primary Examiner.

W. D. LOULAN, Assistant Examiner. 

1. AN ADJUSTABLE LEG COMPRISING A TUBULAR CASING, A SLEEVE INSERT IN THE TUBULAR CASING HAVING THEREIN TWO LONGITUDINAL SPIRAL SLOTS AND PAIRS OF DIAMETRALLY OPPOSED LONGITUDINALLY SPACED BAYONET SLOTS COMMUNICATING WITH THE LONGITUDINAL SLOTS, AN ELONGATED LEG HAVING ONE END THEREOF SLIDABLY LOCATED IN THE SLEEVE, A PIN ON THE ELONGATED LEG SLIDABLY LOCATED IN THE LONGITUDINAL SPIRAL SLOTS, SELECTIVELY ENGAGEABLE IN A PAIR OF THE OPPOSED BAYONET SLOTS AND MEANS FOR ATTACHING THE CASING TO A FIXED SUPPORT. 